Preheat oven to 350°F; in a medium bowl, mix together flour, baking soda and salt; set aside.
With an electric mixer, cream butter and sugars until light and fluffy. Beat in eggs and vanilla, scraping down sides of bowl as needed. Add flour mixture; beat just until combined. Stir in oats,raisins and coconut, beat just until combined.
Drop level 1/4 cup measures of dough 1 1/2 inches apart onto baking sheets. (I use parchment paper).
Bake until cookies have spread and are golden brown and soft to the touch, 18 to 20 minutes, rotating sheets halfway through. Cool 5 minutes on sheets; transfer to wire rack to cool completely. Makes 20 large cookies.